"Even though I am a little mischievous ... 33 girls in two months seems like too much even for a 30-year-old," the prime minister said in an interview earlier this month. Berlusconi has repeatedly denied the claims of wild sex parties.

The pictures features dozens of women kissing and touching one another.

The prosecutor's document details how the soirees at Berlusconi's villa allegedly took place. They started with dinner then continued with "bunga bunga" parties in a room used as a disco.

There, women, sometimes masked, performed a striptease or an erotic dance "touching each other mutually, touching or being touched in their intimate areas by Silvio Berlusconi." The soirees culminated with Berlusconi's choice of a sex partner or partners.

The exact meaning of "bunga bunga" is apparently a bit of a mystery. It has been used in many different ways in the past century, but one claim is that the phrase is actually a nickname for Sabina Began, a German actress and friend of Berlusconi's who says she organized the elaborate parties.

"'Bunga bunga' is simply my nickname," the 36-year-old said, according to the BBC.